passive hemagglutination n.
Passive agglutination in which red blood cells are used to adsorb soluble antigen onto their surfaces; the red blood cells then agglutinate in the presence of antiserum specific for the adsorbed antigen. Also called indirect hemagglutination test.
- Passive hyperemia
passive hyperemia n. Hyperemia resulting from an obstruction in the flow of blood from a body part. Also called venous hyperemia.
noun, Immunology. 1. immunity resulting from the injection of antibodies or sensitized lymphocytes from another organism or, in infants, from the transfer of antibodies through the placenta or from colostrum. passive immunity n. Immunity acquired by the transfer of antibodies from another individual, as through injection or placental transfer to a fetus. passive immunity (pās’ĭv) […]
[pas-iv] /ˈpæs ɪv/ adjective 1. not reacting visibly to something that might be expected to produce manifestations of an emotion or feeling. 2. not participating readily or actively; inactive: a passive member of a committee. 3. not involving visible reaction or active participation: to play a passive role. 4. inert or quiescent. 5. influenced, acted […]
- Passive margin
passive margin See divergent plate boundary.